| 摘要 |
PROBLEM TO BE SOLVED: To obtain a high quality image superpassing a color photograph having a high contrast by providing a coloring material layer containing a plurality of same color mixed dyes each containing a plurality of indophenol dye and a complementary anthraquinone dye on one side surface of a base material, thereby widening a color reproducing range. SOLUTION: A coloring material layer containing a plurality of same color mixed dyes each containing a plurality of indophenol dye and a complementary anthraquinone dye is provided on one side surface of a base material. The coloring material layers of three colors Y, M and C are sequentially printed by gravure printing or the like, and image records are sequentially formed on an image receiving sheet according to image signals of the colors Y, M and C by thermal heads or the like. Each color material layer is constituted by a resin having excellent printability and good stability. Further, the anthraquinone dye is used as a complementary color for giving a short wavelength spectrum component to a lengthened wavelength spectrum. Thus, a high quality image superpassing a color photograph having a wide color reproducing range and a high contrast can be obtained. |
